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Bartolini 5.2



  • 3-Band: 2-Pickup, 5-Knob
  • Vol - Bl - Treb - Mid P/P - Bass
Out of Production

The manufacturer no longer makes this product. Where applicable the newer version of the product or something comparable is shown below.


Control Configuration

  1. Volume
  2. Blend
  3. Treble
  4. Mid (push/pull freq selector)
  5. Bass


A Pre-Wired harness saves the time and aggravation of wiring your pre-amp and pots into your instrument. They feature our industry leading pre-amps and premium audio-quality potentiometers with smooth control and ready for years of rugged use.

Bartolini preamps offer many popular configurations available for many control layouts. Tonally the Bartolini preamps are comparitively punchy in the low, low midrange, and midrange. The top end is 'note' bright. These units contain gain control which allows the user to set the signal to output level via a small trimpot on the module.

These preamps are not recommended for fitment in top routed Fender style instruments with the control cavity on the top. Intended to be used with an instrument with a rear control cavity.

*Modification Needed:

Bartolini preamps are built compatible for use with passive pickups such as Bartolini, Aguilar, Nordstrand, Delano, and other passive pickup manufacturers. If using active pickups preamp passive stage of Volume and Blend will need to use 25k pots. A single 9v battery is sufficient to power both active pickups and a Bartolini preamp simultaneously, but we recommend 2 9v wired for 18v if there is enough room inside the bass

Technical Specifications

  • Bass: +/-14db @ 30 HZ
  • Midrange: +/-10db @ 250, 500, 800 Hz. *Note: Mid P/P has 250 & 800Hz selections, Mid switch allows all three frequencies.
  • Treble: +/-16db @ 10 KHz


Rate and Review this item
Verified Buyer
Greater Tone Control!
By Darryl Collins from on 12/27/2013
Just added the Bartolini 5.2 preamp to my Lakland 5501. Really helped bring out the tone of the Nordstrand Big Singles I installed about a year ago... I'm really digging my bass a whole lot now! This is my 4th purchase from and it won't be the last. Your inventory, service and prices are absolutely fantastic!!!
Verified Buyer
Bartolini 5.2 Preaamp
By Gerald from on 12/27/2013

I am enjoying the enhanced clarity and sound of my newly purchased Bartolini 5.2 bass preamp. I plan to purchase the bass pick-ups next. Thanks for having good service and products. :)
Verified Buyer
brought my bass back alive
By stijn deldaele from on 12/27/2013
This brought my old court A5 back alive together with MK5 pick-ups that i have ordered with. The old electronics didnt't work well. It have upgrade my cort to a real boutique bass. Thanks to best bass gear for the good services and prices. it still was cheaper even with shipment, than to buy it in europe
Verified Buyer
Kingston KZ5
By Keith Anderson from on 12/27/2013
This was my second Bart preamp harness from So I bought the 5.2 after purchasing a recent MTD Kingston KZ5 keeping the stock pups installed, and I do want to tell you it really sounds very nice and alive. 1st thing I would ever do with a Korean bass is put new pro guts in.Easy to install.
Verified Buyer
upgrading my bass
By william walker from on 12/27/2013
Added the 5.2 preamp to the classic bass soapbars purchased earlier from Best Bass Gear for a total Bartolini system in my MTD Kingston. I now have a bass worth twice the price. I would highly recommend Bartolini and Best Bass Gear to anyone looking to upgrade.
Verified Buyer
Great upgrade
By Jc from on 12/27/2013
Haven't been playing a year but I have a used peavey fury VI. The pots were corroded so there was bad static. Bought the Bart preamp and immediately heard the difference. I love the versatility and I'm getting so many tones. This was a great investment. Also about $30 cheaper than local bass store.

I shipped USPS and took less than a week to get to me.